Penance

He is doing penance.

Penance is one of the seven sacraments.

If he does that again, let the punishment be harsher, and in addition, let penance be imposed on him, but if he does that thrice, let him be executed.

If rain fails there will be neither charity nor penance.

Tom is doing penance.

Quoth he, "The man hath penance done, / And penance more will do."

She seem'd, at once, some penanced lady elf, / Some demon mistress, or the demon's self.